CN219345400U

CN219345400U - Novel driving device with worm gear and worm and planetary reducer

Info

Publication number: CN219345400U
Application number: CN202320319253.XU
Authority: CN
Inventors: 杨春雁; 朱凯; 徐尊慈; 彭美; 章志达; 李轲; 刘君临; 季双健; 范静汝
Original assignee: Suzhou Torin Drive Equipment Co Ltd
Current assignee: Suzhou Torin Drive Equipment Co Ltd
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-07-14
Anticipated expiration: 2033-02-27

Abstract

A novel driving device with worm gears and planetary speed reducers belongs to the technical field of speed reducers. The motor is characterized by comprising a speed reducer and a motor, and is characterized in that: the speed reducer comprises a box body, a planet shell, a worm and gear pair, a planet gear pair, a worm shaft, a worm wheel shaft and a main shaft, wherein the motor drives the worm and gear pair to rotate in a meshed mode and then transmit the worm and gear pair to the planet gear pair to rotate in a meshed mode, the worm and gear pair comprises a worm wheel and a worm which rotate in a meshed mode, the worm is fixedly arranged on the worm shaft, the worm shaft is arranged on the box body in a rotating mode, one end of the worm shaft extends out of a shaft section outside the speed reducer, the motor is arranged on the shaft section, the worm wheel and the worm wheel shaft synchronously move, the main shaft is arranged inside the planet shell in a rotating mode, one end of the main shaft and the worm wheel shaft transmit rotary motion through the planet gear pair, and a driving gear which is matched with a working machine is fixedly arranged on the other shaft end of the main shaft, extending out of the planet shell. Noise is reduced, installation space is saved, efficiency is improved, all parts are integrated, the advantages and disadvantages are overcome, and the whole machine is installed in a modularized mode.

Description

Novel driving device with worm gear and worm and planetary reducer

Technical Field

The utility model belongs to the technical field of speed reducers, and particularly relates to a novel driving device with a worm gear and a planetary speed reducer.

Background

The driving device is a mechanical device for driving the working machine to work, and comprises a motor, a speed reducer and the like. The speed reducer is used between the motor and the working machine to match the rotating speed and transfer the torque, and is generally used for low-rotating-speed and high-torque transmission equipment. Along with the growth of the market of engineering machinery and building industry, the application of the speed reducer on various construction mechanical equipment is becoming more and more common.

The motor and the speed reducer of the existing driving device are connected by adopting a coupling, so that the total length of the driving device is longer, the installation space is occupied, the unbalanced load overturning force of the side roller of the driving frame can be increased during normal use, and meanwhile, the defect of larger noise is caused by adopting a coupling connection mode.

Furthermore, the speed reducer of the existing driving device has more or less respective defects, and the problem of the connection mode of the motor and the speed reducer leads to the general low total efficiency of the driving device, which is not suitable for the green, low-carbon and energy-saving concepts advocated in the society at present.

In view of the above-described prior art, there is a need for a reasonable improvement in the structure of existing drive devices. To this end, the applicant has made an advantageous design, and the technical solutions described below are produced in this context.

Disclosure of Invention

The utility model aims to provide a novel driving device with a worm gear and a planetary reducer, wherein a motor and the reducer are integrally connected through a whole shaft, so that the installation space is saved, the efficiency is improved, and all parts are integrated, so that the modular installation of the whole machine is realized.

The task of the utility model is completed in this way, a novel driving device with worm gear and planetary speed reducer, including speed reducer, electrical machinery, the characteristic is: the speed reducer comprises a box body, a planet shell, a worm gear pair, a planet gear pair, a worm shaft, a worm wheel shaft and a main shaft, wherein the worm gear pair is fixedly installed, the worm gear pair, the planet gear pair, the worm shaft, the worm wheel shaft and the main shaft can rotate, the motor drives the worm gear pair to rotate in a meshed mode and then transmit the worm gear pair to the planet gear pair to enable the worm gear pair to rotate in a meshed mode, the worm gear pair comprises a worm wheel and a worm which rotate in a meshed mode, the worm is fixedly installed on the worm shaft, the worm shaft is rotationally arranged on the box body, one end of the worm shaft extends out of the speed reducer, a motor is installed on a shaft section outside the worm shaft, the worm wheel and the worm wheel shaft synchronously move, the main shaft is rotationally arranged inside the planet shell, and a driving gear matched with a working machine is fixedly arranged on the other end of the main shaft, extending out of the planet shell, of the main shaft is transmitted through the planet gear pair.

In a specific embodiment of the present utility model, the planetary gear pair includes a sun gear tooth, a gear ring, a planet wheel, a planet carrier, and a planet wheel shaft, wherein the sun gear tooth is processed on one end of the worm wheel shaft, the gear ring of the planetary gear pair is clamped between one end of the planetary housing and the box, one end of the planetary housing, the gear ring and the box are fixedly connected through a fastener, the inner ring of the gear ring is meshed with the planet wheel, the planet carrier is fixedly arranged on the spindle, the planet wheel is provided with the planet wheel shaft, the planet wheel is rotatably arranged on the planet wheel shaft, and the planet wheel is meshed and rotated with the gear ring and the sun gear tooth simultaneously.

In another specific embodiment of the present utility model, the outer edge of the ring gear extending outwards is clamped between one end of the planetary housing and the box body, and the outer edge of the ring gear and the box body are fixedly connected together through fasteners.

In another specific embodiment of the utility model, the motor comprises a front cover, a motor shell, a rear cover, a stator part and a rotor part, wherein the front cover is fixedly connected with the box body, the rotor part is fixedly sleeved on a worm shaft outside the speed reducer, the stator part is sleeved on the outer side of the rotor part, an inner hole of the stator part is concentric with the rotor part, the stator part is arranged on the inner cavity wall of the motor shell, and two ends of the motor shell are fixedly connected with the front cover and the rear cover respectively.

In a further specific embodiment of the utility model, the motor is an asynchronous motor or a permanent magnet motor.

In a further specific embodiment of the utility model, a brake is further arranged on the shaft section of the worm shaft extending out of the motor, so that the braking of the worm shaft is realized.

In a further particular embodiment of the utility model, the brake is a disc brake or a drum brake.

In a further specific embodiment of the utility model, the middle of the disc brake is sleeved on the worm shaft outside the motor through a spline housing, and the spline housing is fixedly connected with the worm shaft.

In still another specific embodiment of the present utility model, the brake mainly includes a stationary disc, a coil assembly, a brake spring, a movable disc and a brake disc, wherein the brake spring and the coil assembly are embedded in the stationary disc, the stationary disc and the movable disc are connected to a rear cover of the motor by a spacer bush and a bolt, a working gap is formed between the movable disc and the stationary disc, and the brake disc is sleeved on the spline housing.

In a still further embodiment of the utility model, a fan is mounted on a shaft section of the worm shaft passing through the brake, and a motor housing is fixed outside the brake and the fan, and the motor housing encloses the brake and the fan in the housing and is fixedly mounted on the motor through a housing opening.

The utility model adopts the structure and has the beneficial effects that: the motor and the speed reducer of the novel driving device provided by the utility model are integrally connected through the whole shaft, so that the gear meshing noise at the connecting part of the original old structure is greatly reduced; the design shortens the total length of the whole machine by about 1/3, greatly reduces the unbalanced load overturning force of the idler wheels on the side face of the driving frame, and saves more installation space; the whole machine is lighter in weight and more convenient to install; secondly, a high-efficiency motor technology is adopted, a motor connection mode is improved, higher efficiency and reliability are guaranteed, the motor efficiency is up to 95%, IE5 energy efficiency standards are met, a speed reducer adopts a worm and gear and planetary gear two-stage transmission structure, the complete machine achieves a perfect matching effect, and the total transmission efficiency is about 88% -90%; the whole machine can be divided into a planetary assembly, a worm gear reducer, a permanent magnet motor and a brake, all parts are integrated, so that the whole machine can be assembled and disassembled independently, and the modularized installation of the whole machine can be realized.

Drawings

Fig. 1 is a sectional view of the driving device according to the present utility model in the mounting direction of a motor, a brake, and a worm gear pair.

Fig. 2 is a sectional view of the driving device according to the present utility model in the installation direction of the worm gear pair and the planetary gear pair.

In the figure: 100. speed reducer, 101, case, 102, worm shaft, 103, first bearing, 104, second bearing, 105, third bearing, 106, worm shaft, 107, fourth bearing, 108, fifth bearing, 109, case cover, 110, cover, 111, main shaft, 112, planetary housing, 113, sixth bearing, 114, seventh bearing, 115, drive gear; 120. worm gear pair, 121, worm wheel, 122, worm, 123, worm wheel rim; 130. planetary gear pair, 131, sun gear teeth, 132, gear ring, 1321, outer edge, 133, planet gears, 134, planet carrier, 135, planet wheel shaft, 136 and needle bearing; 200. motor, 201, front cover, 202, motor shell, 203, rear cover, 204, stator part, 205, rotor part, 206, motor housing; 300. brake, 301, spline housing, 302, static disc, 303, coil assembly, 304, brake spring, 305, dynamic disc, 306, brake disc, 307, spacer, 308, bolt; 400 fan.

Detailed Description

The following detailed description of specific embodiments of the utility model, while given in connection with the accompanying drawings, is not intended to limit the scope of the utility model, and any changes that may be made in the form of the inventive concepts described herein, without departing from the spirit and scope of the utility model.

In the following description, any reference to the directions or azimuths of up, down, left, right, front and rear is based on the positions shown in the corresponding drawings, and therefore, should not be construed as a limitation on the technical solutions provided by the present utility model.

Referring to fig. 1 and 2, the present utility model relates to a novel driving device with a worm gear and a planetary reducer, which comprises a reducer 100, a motor 200, and a brake 300, wherein the reducer 100 is a worm gear and planetary two-stage reducer, that is, the reducer 100 comprises a worm gear pair 120 and a planetary gear pair 130, and the motor 200 drives the worm gear pair 120 to rotate in a meshing manner and then transmits the worm gear pair 120 to the planetary gear pair 130 to rotate in a meshing manner.

The worm gear pair 120 includes a worm wheel 121 and a worm 122 that are meshed with each other to rotate, the worm 122 is fixedly mounted on the worm shaft 102, and in this embodiment, the worm 122 and the worm shaft 102 are integrally formed. The worm shaft 102 is rotatably pivoted to the housing 101 through a first bearing 103 and a second bearing 104, and one end of the worm shaft 102 extends out of the speed reducer 100, and the other end is pivoted to the first bearing 103 and is located inside the housing 101. The motor 200 and the brake 300 are sequentially installed on the shaft section of the worm shaft 102 extending out of the speed reducer 100 in the axial direction, namely, the motor 200 and the speed reducer 100 are integrally connected through a whole shaft.

The motor 200 includes a front cover 201, a motor housing 202, a rear cover 203, a stator member 204, and a rotor member 205. The worm shaft 102 is pressed against the outer ring of the second bearing 104 by means of the front cover 201 to realize axial fixation of the second bearing 104, and the front cover 201 and the case 101 are fixedly connected by bolts. The rotor part 205 is fixedly sleeved on the worm shaft 102 outside the speed reducer 100 through key connection and realizes axial positioning through a retainer ring, the stator part 204 is sleeved on the outer side of the rotor part 205, an inner hole of the stator part 204 is concentric with the rotor part 205, meanwhile, the stator part 204 is arranged on the inner cavity wall of the motor casing 202, and two ends of the motor casing 202 are fixedly connected with the front cover 201 and the rear cover 203 through bolts respectively. The shaft section of the worm shaft 102 extending out of the rotor part 205 is sleeved with a third bearing 105, and the outer ring of the third bearing 105 is placed in the bearing seat of the rear cover 203. The motor 200 is an asynchronous motor or a permanent magnet motor, and the permanent magnet motor is preferred in this embodiment, so that the overall efficiency of the driving device is higher.

The brake 300 can be a disc brake or a drum brake, the disc brake is preferably adopted in the utility model, the middle of the disc brake is sleeved on the worm shaft 102 outside the motor 200 through the spline sleeve 301, the spline sleeve 301 and the worm shaft 102 are connected through keys, and one end of the spline sleeve 301 is pressed against an axial step of the worm shaft 102 when being installed, and the other end of the spline sleeve 301 is axially fixed on the worm shaft 102 by virtue of a retainer ring.

The brake 300 mainly comprises a static disc 302, a coil assembly 303, a brake spring 304, a moving disc 305 and a brake disc 306, wherein the brake spring 304 and the coil assembly 303 are embedded in the static disc 302, the static disc 302 and the moving disc 305 are connected to a rear cover 203 of the motor 200 by a spacer 307 and a bolt 308, a working gap is formed between the moving disc 305 and the static disc 302, and the brake disc 306 is sleeved on a spline housing 301, namely, the brake disc 306 is connected with the spline housing 301 by a spline.

A fan 400 is mounted on the shaft section of the worm shaft 102 penetrating through the brake 300, a motor housing 206 is fixed outside the brake 300 and the fan 400, and the motor housing 206 encloses the brake 300 and the fan 400 in the housing and is fixedly mounted on the motor 200 through a housing opening.

The speed reducer 100 further includes a worm wheel shaft 106, and the worm wheel shaft 106 is rotatably pivoted on a bearing seat of the case 101 and a bearing seat of the case cover 109 through a fourth bearing 107 and a fifth bearing 108. In this embodiment, the worm wheel 121 is fixedly connected with a worm wheel rim 123 to form a worm wheel assembly, the worm wheel rim 123 is arranged on the worm wheel shaft 106 through a key connecting sleeve and is pressed against an outer ring of one end face of the fifth bearing 108 through the blank cap 110, and the worm wheel rim 123 is pressed against an axial step of the worm wheel shaft 106 through the fifth bearing 108, that is, the worm wheel 121 rotates to drive the worm wheel shaft 106 to rotate. The other end of the worm wheel shaft 106 is provided with a sun gear 131, and the sun gear 131 serves as a sun gear of the planetary gear set 130.

The reducer 100 further includes a main shaft 111, and the main shaft 111 and the worm wheel shaft 106 transmit rotational motion through a planetary gear pair 130. The main shaft 111 is rotatably disposed inside the planetary housing 112 through the sixth bearing 113 and the seventh bearing 114, an outer edge 1321 extending outwards of the gear ring 132 of the planetary wheel set 130 is clamped between one end of the planetary housing 112 and the box 101, one end of the planetary housing 112, the outer edge 1321 of the gear ring 132 and the box 101 are fixedly connected through fasteners, finally, the three are fixedly connected to form a space for installing the planetary wheel 133, and teeth meshed with the planetary wheel 133 are arranged on an inner ring of the gear ring 132. A planet carrier 134 is fixedly sleeved on one end of the main shaft 111 through a spline, a planet wheel shaft 135 is arranged on the planet carrier 134, and the planet wheel 133 is rotatably pivoted on the planet wheel shaft 135 through a needle bearing 136. The planet gears 133 rotate in mesh with the ring gear 132 on the one hand and with the sun gear teeth 131 on the other hand. The number of the planetary gears 133 is 3 or more, and the planetary gears are uniformly distributed along the radial direction of the worm wheel shaft 106, and the number of the planetary gears is preferably 3 in this embodiment. The other shaft end of the main shaft 111 extending out of the planetary housing 112 is fixedly provided with a driving gear 115 which cooperates with the working machine.

With continued reference to fig. 1 and 2, the working principle of the novel driving device of the present utility model is as follows: the motor 200 is electrified to drive the worm 122 to rotate through the integrally designed worm shaft 102, the worm 122 rotates to enable the worm wheel 121 meshed with the worm 122 to rotate, the worm wheel rim 123 fixedly connected with the worm wheel 121 is driven to rotate by rotation of the worm wheel 121, the worm wheel shaft 106 in key connection with the worm wheel rim 123 is driven to rotate by rotation of the worm wheel shaft, the sun gear teeth 131 at the end part of the worm wheel shaft 106 are meshed with the planet gears 133 to drive, the planet gears 133 are meshed with the sun gear teeth 131 and the gear rings 132 simultaneously, the planet gears 133 are fixed with the planet carrier 134 through the planet gears 135, then the planet gears 133 drive the planet carrier 134 to rotate, the planet carrier 134 drives the main shaft 111 to rotate through spline connection with the main shaft 111, and finally the driving gear 115 arranged on the main shaft 111 drives the working machine to work, so that the novel driving device outputs high-torque low-rotation-speed power.

Claims

1. The utility model provides a novel drive arrangement with worm gear and planetary reducer, includes speed reducer (100), motor (200), its characterized in that: the speed reducer (100) comprises a box body (101) fixedly arranged, a planet shell (112) and a worm and gear pair (120) capable of rotating, a planet gear pair (130), a worm shaft (102), a worm wheel shaft (106) and a main shaft (111), wherein the motor (200) drives the worm and gear pair (120) to rotate in a meshed mode, then the worm and gear pair (130) is transmitted to enable the worm and gear pair to rotate in a meshed mode, the worm and gear pair (120) comprises a worm wheel (121) and a worm (122) which rotate in a meshed mode, the worm (122) is fixedly arranged on the worm shaft (102), the worm shaft (102) is rotatably arranged on the box body (101), a motor (200) is arranged on a shaft section, extending out of the speed reducer (100), of one end of the worm shaft (102), the worm wheel (121) and the worm wheel shaft (106) synchronously move, the main shaft (111) is rotatably arranged inside the planet shell (112), one end of the main shaft (111) and the worm wheel shaft (106) are in a meshed mode, the worm and the worm (130) are in a transmission mode, the worm and the worm (122) are in a rotating mode, and the other end, extending out of the shell (111) is fixedly arranged on the planet shaft (112), and is matched with the working machine.

2. The novel driving device with a worm gear and a planetary reducer according to claim 1, wherein: the planetary gear pair (130) include sun gear tooth (131), ring gear (132), planet wheel (133), planet carrier (134), planet shaft (135), sun gear tooth (131) process on worm wheel shaft (106) one end, planet casing (112) one end and box (101) between centre gripping ring gear (132) of planetary gear pair (130) to link up planet casing (112) one end, ring gear (132), box (101) fixed through the fastener, the inner circle and planet wheel (133) meshing of ring gear (132), planet carrier (134) set firmly on main shaft (111), planet carrier (134) on be provided with planet shaft (135), planet wheel (133) rotate and set up on planet shaft (135), planet wheel (133) simultaneously with ring gear (132) and sun gear tooth (131) meshing rotate.

3. The novel driving device with a worm gear and a planetary reducer according to claim 2, wherein: the outer edge (1321) extending outwards of the gear ring (132) is clamped between one end of the planetary shell (112) and the box body (101), and one end of the planetary shell (112), the outer edge (1321) of the gear ring (132) and the box body (101) are fixedly connected through fasteners.

4. The novel driving device with a worm gear and a planetary reducer according to claim 1, wherein: the motor (200) include protecgulum (201), motor casing (202), back lid (203), stator part (204) and rotor part (205), protecgulum (201) and box (101) fixed connection, rotor part (205) fixed cover is on worm axle (102) outside speed reducer (100), stator part (204) cover is established in the outside of rotor part (205) and hole and rotor part (205) keep concentric, stator part (204) are arranged in on the inner chamber wall of motor casing (202), motor casing (202) both ends respectively with protecgulum (201) and back lid (203) fixed connection.

5. The novel driving device with a worm gear and a planetary reducer according to claim 1, wherein: the motor (200) adopts an asynchronous motor or a permanent magnet motor.

6. The novel driving device with a worm gear and a planetary reducer according to claim 1, wherein: the shaft section of the worm shaft (102) extending out of the motor (200) is also provided with a brake (300) for braking the worm shaft (102).

7. The novel driving device with the worm gear and the planetary reducer as claimed in claim 6, wherein: the brake (300) is a disc brake or a drum brake.

8. The novel driving device with the worm gear and the planetary reducer as claimed in claim 7, wherein: the middle of the disc brake is sleeved on the worm shaft (102) outside the motor (200) through a spline sleeve (301), and the spline sleeve (301) is fixedly connected with the worm shaft (102).

9. The novel driving device with the worm gear and the planetary reducer as claimed in claim 8, wherein: the brake (300) mainly comprises a static disc (302), a coil assembly (303), a brake spring (304), a movable disc (305) and a brake disc (306), wherein the brake spring (304) and the coil assembly (303) are embedded in the static disc (302), the static disc (302) and the movable disc (305) are connected to a rear cover (203) of the motor (200) through a spacer (307) and a bolt (308), a working gap is formed between the movable disc (305) and the static disc (302), and the brake disc (306) is sleeved on the spline housing (301).

10. The novel driving device with a worm gear and a planetary reducer according to claim 9, wherein: a fan (400) is mounted on a shaft section of the worm shaft (102) penetrating through the brake (300), a motor housing (206) is fixed outside the brake (300) and the fan (400), and the motor housing (206) surrounds the brake (300) and the fan (400) in the housing and is fixedly mounted on the motor (200) through a housing opening.